I find the unified platform theory pretty interesting just from a logistics POV, not so much my own personal tastes.
Imagine though a Nintendo SoC processor similar to Apple's AX line of processors (CPU + GPU system on chip):
They're tiny. That's the A6 there, but the A8 isn about the same size (the one in the iPhone 6/6 Plus). 60% of the space inside an iPhone is actually the battery, the chipset is very small.
Nintendo could have a SoC just like the one above (with a AMD GPU with Wii U like architecture touches rather than the PowerVR that Apple uses).
1x of those processors for the handheld (roughly Wii U level power)
3x of those processors for the console, about the size a DS (microconsole size) could give you something that easily runs games at 1080p in the range of about 800 Gigaflops. Nice, cozy upgrade on the Wii U, small console size, very low power consumption, easy to scale games up and down to share on both platforms.
Will be pretty cool to see if they go this route. It would save them a ton of R&D money and avoid suppy chain gluts too.
